Refined Obsidian Ingot

The Refined Obsidian Ingot is an ingot created by placing Refined Obsidian Dust into an Osmium Compressor fueled with Liquid Osmium (from Osmium Ingots). It is used to create the most durable and powerful tools and armor in the game (see Obsidian Armor and Obsidian Tools) as well as a few other items. However, it also the most expensive to obtain, requiring at best 1 Diamond and 10 Obsidian to create 10 Refined Obsidian Ingots.

Production

Have a decent power source - The following machines can end up using a lot of Joules per tick, and will slow down or even halt production if not enough energy is supplied to them. However, you can increase their energy efficiency with Energy Upgrades.